Other Parts Discussed in Thread: LM224
Hi
在用LM224 做过压和欠压保护时,发现在生产时出现7pcs 异常。线路如下图。测试时将输入电压慢慢调低到72V-71V-70V观察产品有无欠压保护,正常品在70V左右保护,此不良品需在66V才会保护,芯片脚位阻抗都是OK的。请帮忙看下是什么问题? 还是批次问题需要申请FA ? 谢谢
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